Patent FR402687A successfully refreshed from Google Patents.
Patent US3102810A successfully refreshed from Google Patents.
US3102810A
Expired / Lapsed
US
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Print-out cyanine and styryl dye bases and process of producing litho masters and the like therewith
Assignee: Horizons Inc
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Filing: 1961-04-05
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Granted: 1963-09-03
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Expires: 1981-04-05
Abstract
No abstract record available.
Inventors
- 👤 Robert H Sprague
- 👤 Jr Harry L Fichter
- 👤 William P Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:54
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03C; G03C1/00; G03C1/675
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
69 words
A NON-SLIVER PHOTOSENSITIVE COMPOSITION WHICH PRINTS OUT DIRECTLY AS A RESULT OF EXPOSURE TO VISIBLE LIGHT COMPRISING A MIXTURE OF THE FOLLOWING: (A) PHOTOLYTICALLY ACTIVE ORGANIC HALOGEN-CONTAINING COMPOUNDS REPRESENTED BY THE GENERAL FORMULA A-C-BR3 WHEREIN A IS SELECTED FROM THE GROUP CONSISTING OF H, CL, BR, I, ALKYL, AND ARYL, (B) AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF STYRYL DYE BASED REPRESENTED BY GENERAL FORMULA I,
Claim 2
Dependent Claim
69 words
A NON-SLIVER PHOTOSENSITIVE COMPOSITION WHICH PRINTS OUT DIRECTLY AS A RESULT OF EXPOSURE TO VISIBLE LIGHT COMPRISING A MIXTURE OF THE FOLLOWING: (A) PHOTOLYTICALLY ACTIVE ORGANIC HALOGEN-CONTAINING COMPOUNDS REPRESENTED BY THE GENERAL FORMULA A-C-BR3 WHEREIN A IS SELECTED FROM THE GROUP CONSISTING OF H, CL, BR, I, ALKYL, AND ARYL, (B) AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF STYRYL DYE BASED REPRESENTED BY GENERAL FORMULA I,
Claim 3
Dependent Claim
52 words
A PROCESS FOR PRODUCING A LITHO MASTER, COMPRISING PREPARING THE COMPOSITION OF CLAIM 1; COATING A CASEINFILLED PAPER THEREWITH; EXPOSING THE COMPOSITION TO LIGHT THROUGH A SUITABLE NEGATIVE, THEREBY PRODUCING A POSITIVE IMAAGE IN COLOR; SWABBING THE EXPOSED SHEET WITH WATER TO RENDER THE BACKGROUND INK-REPELLENT, THE IMAGE AREA THEN BEING INK-RECEPTIVE.
References Cited (Backward Citations)
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US2835576A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |